LuckyTrouble on 27 September 2016
Edit: Because Nintendo said it was coming March 2017 back in April during their investors meeting - http://www.eurogamer.net/articles/2016-04-27-nintendos-nx-console-will-launch-march-2017-globally
Also, considering there is almost nothing announced for the Wii U for 2017 besides Zelda, an early release is the only thing that makes sense. They aren't going to delay that if they don't absolutely need to.
